celtium मीनिंग इन हिंदी

Georges Urbain asserted that he found element 72 in the rare earth elements in 1907 and published his results on " celtium " in 1911.
The controversy was partly because the chemists favored the chemical techniques which led to the discovery of " celtium ", while the physicists relied on the use of the new X-ray spectroscopy method that proved that the substances discovered by Urbain did not contain element 72 . and Charles R . Bury suggested that element 72 should resemble zirconium and therefore was not part of the rare earth elements group.
The International Commission on Atomic Weights, which was then responsible for the attribution of new element names, settled the dispute in 1909 by granting priority to Urbain and adopting his names as official ones, based on the fact that the separation of lutetium from Marignac's ytterbium was first described by Urbain; This later misled Urbain into thinking that he had discovered element 72, which he named celtium, which was actually very pure lutetium.